Closure



Aug. 18, 1925. 1,550,302

C. A. ZAROBSKY CLOSURE Filed Aug. 25, 1925 CHARLES A. ZAIQOBSKY INVENTORJ A'TTO KNE Y3 Patented Aug. 18 1925.

UNITED STATES PATENT OFFICE.

CHARLES A. ZAR-OBSKY, OF QLEVELAND, OHIO, ASSIGNOR '10 THESIMPLE: CAPGOM- PANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

CLOSURE Application filed August 25, 1923. Serial No. 659,249.

To all whom it may concern:

Be it known that I, CHARLES A. ZAROB! SKY, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Closures, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

My invention provides a device particularly designed and entirely satisfactory as a closure for the stem of an automobile radiator but is applicable to devices other than radiator stem closures and other than closures of any sort.

Figure 1 is an expanded view showing the various partsof one form of my invention,

Figure 2 is a central vertical section of the parts shown in Figure. 1 showing them in partially assembled position,

Figure 3 is a section similar to Figure 2 showing the parts in completely assembled position,

Figure 4 is a section similar to Figure 3 illustrating the method of application .to this closure of an instrument such as a motometer, while Figure 5 is a view similar to Figure 3 illustrating a second form of my invention.

The closures herein disclosed are particularly designed for closing an automobile radiator stem yet at least some of the essen tial features thereof may be incorporated in closures for other purposes and in articles other than closures of any sort.

The construction shown in Figures 1 through 4 comprises a stem 11 provided with a plurality of pins 12 projecting from the exterior surface thereof and adapted to be engaged by the walls of recesses 13 form-ed upon the side of a cap 14 and each comprising a part 15 communicating with the edge of the cap 14 and a part 16 substantially parallel to the edge of the cap 14 and ter-v minating in a shallow locking depression 17, the pins 12 and recesses 13 thus constituting bayonet joints adapted to hold the cap 14 upon the stem 11 and at the same time permit ready removal thereof.

While the portion 15 of the recesses 13 may be formed in any suitable shape I prefer to form it at an angle of about 45 degrees to the edge of the cap 14 whereby continued disassembling rotation of the cap 14 will result in an action between the pins 12 and the walls of the portions 15 of the recesses 13 which will automatically separate the cap 14 from the stem 11 and eliminate the necessity for a separate longitudi- Ilifll movement of the cap for removal there- 0 In order to retain the cap 14 against vibratory or other accidental displacement I position between the cap 14 and the stem 11 a resilient disc 18 formed, so far as this function is concerned, in the shape of a very flat truncate-d cone and I then form the various parts in such manner and of such relative size that positioning of the cap 14 upon the stem 11 necessitates a flattening of the disc 18 against the resilient resistance thereof and therefore places'the disc 18 under a tension which is effective to constantly hold the pins 12 in the locking depremions 17 and entirely prevent accidental displacement of the cap 14 from the stem 11.

In order to form a more perfect seal between the stem 11 and the disc 18 I prefer to insert therebetween a sealing ring 20 which may be of any suitable material such as cork composition. When such a ring is employed, however, I find it desirable, in

order to prevent the rapid deterioration ofl the ring which would result from rubbing thereof by another body, to incorporate in my closure some expedient which will facilitate relative frictional movement be tween parts of the closure other than the disc 20 and will thus prevent the rotation of the cap 14 relative to the stem 11 from causing movement of the ring 20 relative to either the disc 18 or stem 11. I find that I may accomplish this result conveniently by providing upon the upper face of the disc 18 an annular rib 19 which will move over an adjacent surface with almost negligible friction and therefore act to localize between itself and the part adjacent to it the entire relative movement resulting from the rotation of the cap 14 relative to the stem 11. In order to continue this action.

when the disc 18 is substantially flattened" sire to form the rib 19 substantially higher than the rib 21 to thus increase the effective height of the disc 18, and thereby increase the locking action of the disc l8.

It will be understood that in assembling the cap 14 on the stem 11 the action of the cap 14 against the disc 18 over the complete annular surface formed by the rib 19, and the counter action of the stem 11 "against the disc 18.0ver'the complete annular surface of the disc 18 alined, axially of the joint, with the stem 11 and unalined, axially of the joint, with the annular surface formed by the rib 19, will cause 'a flexing of the disc 18 against the resilient resistance of the disc 18 whereby the disc 18 will be under tension when the cap baflle to the escape of fluid. Undercertain conditions I may desire to provide additional resistance to the escape of fluid and insuch case I may introduce between the disc 18 and,the cap 14 a baflledisc 25 provided with an aperture 2 6 permitting the passage of vapor but positioned out of ali ment with the apertures 22 and 23 to furt er retard the How of fluid. r

This disc 25 should be formed of a ma terial which will'resist the action of the fluid and vapor to which it is exposed and in addition, in order to insurev that the relative movement between the cap 14 and stem 11 still occurs between the cap 14 and disc 18, should e formed of a material which will also sli e easily upon both the cap 14 and rib 19. 'I find that one material,

suitable for the with parafline.

In recent years there has come into widespread use a device popularly known as a moto-meter designed to be positioned upon purpose is board impregnated the closure of the radiator stem of an automobile. In order to rovide for the ready addition of such an instrument to the closure herein shown I rovide this closure with a section 27 partia ly severed from the remainder of the closure and therefore adapted to be readily completely severed to provide in the closure an aperture 28 through which the stem 29 of such an instru ment may be inserted and then clamped, into position by means of suitable nuts screw threaded to the stem 29 and clamp- 14 and: stem 11 are assembled and will, by that 14 from the stem 11. r

ing between themselves the adjacent edges of the cap 14.

The form of closure illustrated in Figure 5 is in all respects similar to that shown in Figures 1 through 4 except that it omits the baflle disc 25.

It will be apparent from the above description that I have provided closures readily attachable to and removable from a stem, reliably secured in position against vibratory disp acement, permitting the escape of vapor while substantially preventing the. escape of fluid, adapted to readily receive an instrument such as a moto-meter, and possessing other advantages readily apparent from a consideration of the structures. It will also be apparent to those skilled in the art that the particular constructions herein disclosed may be variously changed and modified without departing from the spirit of my invention or sacrificing the advantages thereof. It will also be clearly understood that at least some of the features and advantages of m invention ma be employed in closures ot er than those 0 oothe type herein shown and in face in articles other than closures of any type. It will therefore be understood that the disclosures herein are illustrative only and that my invention is not limited thereto.

I claim:

1. In combination, a duct, a cap therefor, means for securing together said cap and said duct operable by relative longitudinal movement of said duct and said cap and subsequent relative rotative movement of said duct and said cap, a resilient disc interposed between said duct and said cap, a afiie disc interposed between said resilient disc and said cap, said resilient disc being provided with 'an annular rib arranged to be pressed against by one of the adjacent parts and positioned interiorly of the area of said disk which is pressed against by the other of said adjacent parts, and said discbeing so proportioned that assembly' of said cap and said duct necessitates springing of said resilient disc, whereb said cap and duct when assembled are he (1 against accidental relative rotative movement.

2. In combination, a duct, a ca therefor, said cap being convexed outward y over its central portion and apertured in its convexed portion to permit the passage of va or therethrough, means for securing toget or said cap and said duct operable by relative longitudinal movement of said duct and said cap and subsequent relative rotative movement of said duct and said cap, a resilient disc interposed between said duct and said cap convexed outwardly over its central portion and apertured in its convexed portion to permit the passage of vapor therethrough, a bafile disc interposed between tured in its spaced said cap and said resilient disc spaced over its central portion from both said cap and said resilient disc and apertured in its "said three apertures being substantially out pf alinement.

3. In combination, a duct, a resilient disc interposed between said resilient disc and said cap spaced at its central portion from 'bothsaid resilient disc and 'said' cap and overlying said duct and apertured to permit the passage of vapor therethrough, a cap overlying said'duct and said resilient disc,

pressing upon said resilient disc interiorly of the area over which said duct presses upon said resilient disc, and apertured to permit the passage of vapor therethrough,

said duct and said .cap being centrally oppositely convexed to provide a bafilechamber therebetween, a baffle discinterposed between said cap and said resilient disc, spaced at its central part from both said cap and said, resilient disc, and aperpart to permit the pas sageof vapor therethrough, said cap and said duct being provided with bayonet joint connections sopositioned that said resilient 1' disc must be flexed in assembling said cap on said duct, whereby said ,pap is {held firmly in position on said duct, and said three apertures being substantially out of alinement. I

4. In combination, a duct, a cap therefor provided in its outer wall with an aperture adapted to permit the passage of vapor therethrough, means for seouringtogether said cap andrsaid duct operable by relative longitudinal movement of said ductand said cap and subsequent relative rotative movementof said duct and said cap, a resilient disc interposed between said duct and said cap spaced from. said cap over its central portion and provided in its spaced portion with an aperture adapted to permit the passage of vapor therethrough, a battle disc interposed between said resilient disc and said cap spaced at its central portion from both said resilient disc and said cap and apertured to permit the passage of vapor therethrough, said resilient disc being provided with an annular rib arranged to be pressed a inst by one of the adjacent parts and positioned interiorly of the area of said disc which is pressed against by the other of said adjacent parts, said cap and duct and resilient disc and baflle disc being so proportioned that assembly of said cap and said duct necessitates springing of said disc, whereby said cap and duct when assembled are held against accidental relative rotative unalined.

5. In combinatiomia duct, a cap therefor provided in its outer wall with an aperture adapted to permit the passage of vapor the-rethrough, means for securing together said cap and said duct operable by relative longitudinal movement of said duct and said cap and subsequent relative rotativemovement of said duct and said cap, a resilient disc interposed between said duct and said cap spaced from said cap over its central portion and provided in its spaced pormovement, and said three apertures being tion with an aperture adapted to permit the passage of vapor threthroughfa baflle disc apertured topermit the passage of vapor therethro-ugh, saidresilient disc being provided with an annular ribdarranged to be pressed against by said bafile disc and positioned interiorly of the area of said disc which is pressed against by said duct,'said cap and duct and resilient disc and bafile disc being so proportioned that assembly of said cap and said duct necessitates springing of said resilient disc, whereby said cap and duct whenassembled are held against accidental relative rotative movement, and said three apertures being unalined.

that said disc is sprung from its normal position when said members'are so assembled, and said cap member and disc being ppositely concaved over their central portions to form a chamber therebetween and apertured in said concaved portions to permit passage of vaportherethrough.

7. In combination, a duct member, a cap member, a resilient disc interposed between said members and acted against by said duct memberover a first surface and said cap member over a second surface, and bayonet joint means arranged to hold'said members in assembled relation with said disc therebetween, and provided with a locking de- ,pression adapted to deter disassembling relative rotation "of said members, said first surface and said second surface being unalined axially "of said joint, said members and disc being so formed that said disc is sprung from its normal position when said members are so assembled, and said cap and said disc being oppositely concaved over 6. In' combination, a duct member, a cap 7 vapor through said'chamber,

their central portions to form a chamber therebetween and aperturedtopermit passage of vapors through said chamber.

8. In combination, a duct member, a cap member adapted'to close one end of said duct member, a resilient disc interposed between said members and acted against by said duct member over a first surface and said cap'member over a second'surface, a second disc interposed'between said duct and said cap, and bayonet joint means arranged to hold said members in assembled relationwith said discs therebetween, said first surface and said second surface being -unalined axially of said joint, said members and discs being so formed that said resilient disc is sprung from its normal members are so assemble said cap and the disc remote therefrom being oppositely concaved over the central portion thereof to form a chamber therebetween, and said cap and both said discs being apertured to perniit passage of vapor through said chamber. 9. In combination, a 'duct member, a cap r member, a resilient disc interposed between said members-and acted against by said duct member over a first surface and said cap member over a second surface, a second disc interposed between said cap member and said duct member, and bayonet joint means arranged to hold saidmembers in assembled relation with. said discs therebetween, and

provided with ajocking depression adapted to deter disassembling relativev rotation of ond surface being unalined axially of said oint, said members and discs beingso formed that said resilient disc is sprung from its 4 normal position when said members-are so therefrom being oppositely concaved over their central port-ions to form a chamber therebetween,-and said cap and both said discs being apertured to permitpassage of 10. In combinati n, a duct member, a cap member adapted to close one end of said duct member, a resilient disc interposed between said members and engaging said duct member over a first surface and said cap member over a second surface, and bayonet oint means arranged to hold said members in assembled relation with said, disc therebetween, said first surface and said second surface being unalined axially of said joint and said members and disc being so formed that said disc is sprung from its nor= mal position when said members areso assembled, said .cap member being provided with a section united to the remainder of said'cap by a weakened area designed toreadily yield to permit easy removal of said section to form an aperture adapted to receive an instrument such as a moto-meter,

11. In combination, a first part, a second sition when said assembled, said cap and the disc; remotepart, means for securing said parts together operable by relative longitudinal movement of said parts andgsiibsequent relative rota- .tive movement of said parts, a resilient disc interposed between said parts, a bafliedisc interposed between said resilient disc' and one of said parts, said'resilient disc being provided with an annular .rib' arranged to be pressed against byone of the adjacent parts and positioned interiorly of the area of said disc which is pressed against by the other of said adjacent parts, and said parts and said resilient disc and said baflle disc member adapted to close one end' of said duct member, a resilient disc interposed between said members and acted against by said duct member over a first surface and said cap member over a. second surface, and

bayonet joint? means arranged to hold said,

members in assembled relation with said disc therebetween, said first surface and said second surface being unalined axially of said joint, said members and disc being so formed that said disc issprung from its normal position when said members are so assembled, said disc being concaved away from said cap member over its central ortion to form, a chamber between said disc and said cap member, and'saiddisc and said cap member being 'apertured at said concaved portion to permitpassa-ge of vapor therethrough.

member adapted to close one end of said duct member, a resilient disc interposed between said members and acted against by said duct member over a first surface and said cap member over a; second surface, and

bayonet joint means arrangedxto hold said members in assembled relation with said disc therebetween, said first surface and said ,second surface being unalined axiallyvof said joint, said members and disc being so formed that said disc is sprungfro n'its normal position when'said members are so assembled, said cap member being concaved away fro said disc over its centnalportion 'to form chamber between said disc and said cap member, and said disc, and said cap member being. apertured'at said concaved portion to permit passage of vapor there through I v Y 14. In combination, a duct member, a cap member adapted to close one end of said duct memberya resilient disc interposedfbetween duct,member over a first surface andsaid bers in assembled relation with said 13. In combination, a duct member, a cap said members and acted against by said therebetween, said first surface and said second surface being unalined axially of said joint, said members and disc being so formed that said disc is sprung from its normal position when said members are so assembled, and said cap member and disc being oppo sitely conoaved over their central portions to form a chamber therebetween and to permit passage of vapor through said chamber.

15. In combination, a duct member, a cap member adapted to closeone end of said duct member, a resilient disc interposed between said members and acted against by said duct member over a first surface and said cap member over a second surface, and bayonet joint means arranged to hold said members in assembled relation with said disc therebetween, said first surface and said second surface being unalined axially of said joint, said members and disc being so formed that said disc is sprung from its normal position when said members are so assembled, said disc being conc-aved away from said cap member over its central portion to form a chamber between-said disc and said cap member, and said disc and said cap member being formed to permit passage of vapor through said chamber.

16. In combination, a duct member, a cap member adapted to close one end of said duct member, a resilient disc interposed between said members and acted against by said duct member over a first surface and said cap member over a second surface, and bayonet joint means arranged to hold said members in assembled relation with said disc therebetween, said first surface and said sec ond surface being unalined axially of said joint, said members and disc being so formed that said disc is sprung from its normal position when said members are so assembled,

said cap member being concaved away from said disc over its central portion to form a chamber between said disc and said cap member, and said disc and said cap member being formed to permit passage of vapor through said chamber.

In testimony whereof, I hereunto aflix my signature.

CHARLES A. ZAROBSKY. 

